(19)

(11)

EP 4 143 490 A1

(12)

(43) Date of publication: 08.03.2023 Bulletin 2023/10 (21) Application number: 21795413.0 (22) Date of filing: 16.03.2021

(51) International Patent Classification (IPC):  F25B 31/00(2006.01) F25B 5/04(2006.01) H02P 1/28(2006.01) H02K 5/22(2006.01) F25B 5/02(2006.01) F04B 39/06(2006.01) F25B 49/02(2006.01) (52) Cooperative Patent Classification (CPC): F04B 39/06; F25B 5/02; H02P 1/28; F04B 35/04; F25B 1/10; F25B 1/053; F25B 31/006; F25B 41/20; F25B 2700/2104; H02P 1/52; H02K 11/33 (86) International application number: PCT/US2021/022462 (87) International publication number: WO 2021/221806 (04.11.2021 Gazette 2021/44)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 30.04.2020 US 202063017796 P (71) Applicant: Danfoss A/S 6430 Nordborg (DK)	(72) Inventors: SUN, Lin Xiang Tallahassee, Florida 32312 (US) LI, Tianlei Tallahassee, Florida 32309 (US) PRITCHARD, Brandon Keith Tallahassee, Florida 32312 (US) (74) Representative: Marks & Clerk LLP  15 Fetter Lane London EC4A 1BW London EC4A 1BW (GB)